There are 3 major threats to the validity of pre-experimental designs. They are _____
a. history, maturation, and testing
b. selection, history, and generalization
c. generalization, selection, and mortality
d. selection, mortality and the selection by mortality interaction
D
Selection, mortality, and the interaction between them present challenges to the validity of pre-experimental designs.
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The work of Jean Piaget led to the view that children:
a. do not hypothesize about the world b. are actively involved in their cognitive development c. accommodate as a result of assimilation d. solve abstract problems in the sensorimotor stage
Involvement in leisure activities and, especially, __________ is related to better physical health and reduced mortality
A) volunteer service B) travel C) reading D) swimming
Boys with ADHD tend to ______________________
a. lack empathy, or awareness of other people's feelings b. be more emotionally affected by the sadness of others c. tend to have a strength in working memory d. are typically goal-directed in their hyperactivity
All of the following are true statements about pharmacological interventions for
eating disorders except: a. There is little systematic research on the effectiveness of medication in the treatment of anorexia. b. Pharmacological interventions are relatively ineffective at treating the core symptoms of eating disorders. c. One study found that weight changes, depressive symptoms, and attitudes about weight and body shape were equivalent in a group of women with anorexia who were given Prozac and a group who were given a placebo. d. Tricyclic antidepressants may be effective to treat bulimia, but there is little evidence that they are effective to treat anorexia. e. The addition of SSRIs to cognitive behavioral therapy for bulimia has been found to boost the effectiveness of that treatment.